Предмет: Математика, автор: 4n4sjhcq6s

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Автор ответа: meowwxsn

1

6,4х-5,56х+3,84=10,14

0,84х+3,84=10,14

0,84х=10,14-3,84

0,84х=6,3 потом нужно разделить обе стороны уравнения на 0,84

получается х=7,5

либо же х=15/2, х= 7 1/2

meowwxsn: можно лучший ответ пж

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